I don't immediately see what is wrong. The whole game is vector graphics and scalable. What is wrong?

Expand the image. The game runs in low-resolution mode on a high-density display, presumably because it has no support. Yes I think it should be easy to add support because of its scalable vector graphics.

raptor wrote:Ah, OK. You mean to start as a larger window in the first place; that should be simple enough. What is a standard high-density display nowadays, in raw pixel resolution?

I don't know exactly how you make a program support high-dpi. You do need to have the thing render at twice the resolution, but it needs to be displayed at half the size to fit the screen... and somehow the OS knows whether the app aupports high dpi or not, cause the title bar is also shown in low-res